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Volcans
Volcans
Volcans
Volcans
Volcans
Volcans
Volcans
Volcans
Volcans
Volcans
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Volcans

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  • 1. VOLCANS
  • 2. Index <ul><li>Estructura dels volcans </li></ul><ul><li>Tipus de volcans </li></ul><ul><li>Alguns volcans de Catalunya </li></ul>
  • 3. ESTRUCTURA DELS VOLCANS Index
  • 4. TIPUS DE VOLCANS <ul><li>VULCANIÀ </li></ul><ul><li>HAWAIÀ </li></ul><ul><li>ESTROMBOLIÀ </li></ul><ul><li>PELEÀ </li></ul>Index
  • 5. VULCANIÀ <ul><li>Magma intermedi </li></ul><ul><li>Erupció de tipus explosiu </li></ul><ul><li>Són alts </li></ul><ul><li>Emeten lava i piroclasts </li></ul>TIPUS DE VOLCANS
  • 6. HAWAIÀ <ul><li>Magma bàsic </li></ul><ul><li>Erupcions tranquil·les </li></ul><ul><li>Té forma d’escut </li></ul><ul><li>Emet colades de lava </li></ul>TIPUS DE VOLCANS
  • 7. ESTROMBOLIÀ <ul><li>Magma intermedi </li></ul><ul><li>Laves bastant fluides </li></ul><ul><li>Forma cònica </li></ul><ul><li>Emeten colades de lava i piroclasts </li></ul>TIPUS DE VOLCANS
  • 8. PELEÀ <ul><li>Magma àcid </li></ul><ul><li>Lava viscosa </li></ul><ul><li>En el cim d’aquests volcans apareix un gran dom o agulla de roca </li></ul><ul><li>Emeten núvols ardents </li></ul>TIPUS DE VOLCANS
  • 9. ALGUNS VOLCANS DE CATALUNYA CRUSCAT SANTA MARGARIDA MONTSACOPA Index
  • 10.  

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